You Want to Design a Small Portable Computer System with Memory

question 25

Multiple Choice

You want to design a small portable computer system with memory that can be updated, but that does not lose its contents when the device is turned off. What chip should be used?

• A)CMOS
• B)ROM
• C)RAM
• D)POST

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Definitions:

Operating Power

The amount of power required by a device or system to perform its designated functions under normal conditions.

Optical Isolation

Electrical separation of two circuits with the use of an optical coupler.

Electrical Noise

Unwanted random signals mixed with a useful electrical signal that can cause disturbances and degradation in system performance.

I/O Modules

Hardware components in a control system that interface with external devices; they facilitate input and output operations between the processor and the peripherals.